For Isla Alcatras :
No gale warning.
The reliability of the situation is very good.
Fairly cloudless skies becoming changeable during the morning, sun and storm clouds in the afternoon. No precipitation in the morning, showers late in the day. In the evening, clear periods developing.
Possibility of showers NNE force 1 freshening SSE force 3 in the middle of the day then NNW force 1. Slight sea. Low, fairly long swell from SW. Visibility reduced by mist becoming good in the middle of the day then reduced by mist.